Why is there an 'A' in the icon of Black Market and Secret Warehouse cards?

I mean, the unavailable-ressource-becomes-available-ressource and available-ressource-becomes-one-more-of-the-same icons would be self-explanatory without the 'A', so why is it there? What does it mean?

Why is there an 'A' in the icon of Black Market and Secret Warehouse cards?

I mean, the unavailable-ressource-becomes-available-ressource and available-ressource-becomes-one-more-of-the-same icons would be self-explanatory without the 'A', so why is it there? What does it mean?

The "A" represents that it is a resource you could produce but don't have enough of. Whereas the A with an / represents one that you do not already produce. So if you produce Stone for example, it can't be a stone that you get on the black market.

It is different than produce any resource of your choice regardless of whether you produce it or not.

Thank you, but I already know how those cards work. That was not my question.My question is about the artwork: those symbols, with their brown/gray backgrounds, would be quite explanatory without any letter printed in the middle.-why did they print a letter? Why the 'A'?

I think they jsut wanted to make sure that it's clear that you get two resources of the same kind. If the 'A' wasn't there, the symbols could be interpreted that you have to pay one resource to get two of any kind.

Thank you, but I already know how those cards work. That was not my question.My question is about the artwork: those symbols, with their brown/gray backgrounds, would be quite explanatory without any letter printed in the middle.-why did they print a letter? Why the 'A'?

I deem the letter 'A' to be necessary.

In Cities, the card that says...A --> Amakes it clearer that that the resource you're producing can't already be the same as on the left hand side. Of course, you'll need to consult the rulebook for first time players to clarify that the whole thing is "something that you don't alr produce on a brown or gray background". Without the 'A', it may be interpreted as from yellow background cards, or "if you don't produce a brown, then you can get gray", and vice versa

Catan has a power that saysAA --> BUsing A vs. B shows clearly shows that the input resources must be the same. Furthermore, the yield must be different from what you inputted (I guess there may be a future special power that gives you an effect or bonus for using wonder powers [shrug])

I think they jsut wanted to make sure that it's clear that you get two resources of the same kind. If the 'A' wasn't there, the symbols could be interpreted that you have to pay one resource to get two of any kind.